@Mr.Wizard, the link is very useful too, thanks. I always forget to search on stackoverflow. It would be nice if the Mathematica questions on there could be imported into this site somehow.
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Simon WoodsJul 6 '12 at 13:09

They can be imported, but only on a case-by-case basis as they're still generally on-topic over there. We have to beg and plead for them to be migrated, and it rarely happens with questions that are older with good answers already.
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rcollyerJul 6 '12 at 14:36

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